object creation and common operations The following are simple and intuitive to create objects, but also the most basic way to create objects JavaScript, if you want to create more than one object , there will be a lot of the same code . 1: Using
In a word, the object in JavaScript is a function, a method.(i) the first type:A, declared object: var jhsoft = Jhsoft | | {}; or Var jhsoft=new Object ();b, add attribute:Jhsoft.currenturl = document. url;//Current PageC, Add Method:Jhsoft.trim =
For web front-end development, it boils down to three parts:
Structure: HTML
Performance: CSS
Behavior: JavaScript
In terms of behavior, JavaScript is primarily done by using the DOM to manipulate Web pages. The DOM, the
Title, the code is on.HTML>Head>title>Denotoggletitle>style>#box{width:100px;Height:100PX;Background-color:#ddd}. Show{Visibility:Hidden;}style>Scriptsrc= "Http://libs.baidu.com/jquery/1.8.2/jquery.min.js">Script>//java Script Method -Scripttype=
The JavaScript language is a dynamic type of language, object-based and event-driven. In terms of object-oriented thinking, it also has the concept of class. JavaScript does not have a class keyword and is implemented using function.1.
To start with a simple example, a simple button control is as follows:Then register the event for it, in this case, how to get the event in JavaScript, especially the Firefox situation. Please see:No accident, under the IE/FF, the above example will
Scope has lexical scope and block-level scope, JavaScript belongs to lexical scope, but in Java, C + + is a block-level scope. In JavaScript, only functions are able to create scopes, scoped by function.Look at the code first:function OutPut () {
Less than 30 lines of JS code can be used to implement Excel tables, and 30 lines of excel
The example in this article describes how to implement an Excel table using less than 30 lines of JS Code. It can be seen that jQuery is not irreplaceable.
Exploring JavaScript: Powerful prototype and prototype chain
// The foo variable is for (var I in foo) {if (foo. hasOwnProperty (I) {console. log (I) ;}} in the preceding example );}}
JavaScript does not contain the traditional class inheritance
ExtJs -- 12 -- Use of the requires uses singleton three configuration items of the Ext definition class
Ext. use of onReady (function () {/** requires uses singleton three configuration items */Ext. define ("A", {// The required class time for
For more information, see JavaScript anonymous functions and closures.
1. Anonymous FunctionsFunctions are the most flexible objects in JavaScript. Here we will only explain the usage of anonymous functions. Anonymous function: A function without a
Analysis of append () and appendto () usage in jquery, jqueryappendto
This document analyzes the usage of append () and appendto () in jquery. Share it with you for your reference. The specific analysis is as follows:
In jQuery's document operation
JavaScript mode Reading Notes Chapter 1 FunctionsNovember 10, 20141. JavaScript Functions have two features: a function is the first type of object function that can provide a scope function, that is, an object, as shown in:-1. functions can be
JQuery $ Name Conflict Solution Summary
Recently, I encountered a problem and referenced the jquery library and another js library. When $ XX is used to call the js library function, it becomes invalid! So I found the document. It turns out that
Chapter 3: fonts and text,I. font and text
Differences between fonts and texts:
The font mainly involves the text size and appearance (can be applied to a single character ).
Text mainly involves processing fonts (only applicable to text
[Html] about the anchor, html
Today, we modified the guild system and used the anchor to control the page location. Some problems were encountered in the result. The problem was solved by querying relevant information. Here we will summarize it.
ExtJs -- 04 -- Description of window properties and add child components in two ways
Ext. you can set the display style for the layout attribute of the onReady (function () {/** extjs container component. The following options are used as needed:
Javascript variable scopeThe basic types and reference types of javascript variables are simple data segments, the reference type value refers to the object that may consist of multiple values to assign a value to the variable. The javascript parser
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